Exfoliation stone



FIG. 1 is a perspective view showing a new design for an exfoliation stone;

FIG. 2 is a left side view of the exfoliation stone shown in FIG. 1;

FIG. 3 is a right side view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a cross-sectional view thereof, taken along line 1-1 in FIG. 2. 

The ornamental design for an exfoliation stone, as shown and described. 